GEOLOGY 1 Chapter 10: Geology 1 - ch 10
Document Summary
Landslide and other ground failures posting substantial damage and loss of life. In the us, average 25- 50 deaths and up to 100-150 if collapses of trenches and other excavations are included; damage more than 3. 5 billion. Mass wasting: comprehensive term for any type of downslope movement. For convenience, definitions of landslide here include all forms of mass-wasting movements. Landslide and subsidence: naturally occurred and affected by human activities. Landslide occurred on jan. 10th, 2005, destroyed 36 homes and killed 10 people. Triggered by heavy rain, reactivation along an older landslide surface (35,000 years ago, Debris flow up to 45 km/h (30 mph) La conchita shouldn"t be built on the landslide deposits and under the foot of the slope. Slopes: the most common landforms, dynamic and evolving system. Consists of cliff face (free-face) and a talus slope or upper convex slope, a straight slope and a lower concave slope.
